Consistency, persistence and stubbornness. They can be tremendous virtues, so long as you are sure you are right.
And, if you're not, then as economist John Maynard Keynes is said to have stated: "When the facts change, I change my mind. What do you do?"
National Party leader Barnaby Joyce and his key lieutenants may finally have capitulated after months of internal bickering over whether to endorse a carbon emissions reduction target at the upcoming climate summit in Glasgow.
The last-minute deal was short on detail, with vague mentions of regional jobs and uranium but nothing on renewables.